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Finding the Fourth Proportional to 98,841.51, 136,394.19 and 55,807.74

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Solution

The fourth proportional to 98,841.51, 136,394.19 and 55,807.74 is: 77,010.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,841.51 : 136,394.19 = 55,807.74 : x
  2. Step 2: Convert to fraction form
    98,841.51/136,394.19 = 55,807.74/x
  3. Step 3: Cross multiply
    98,841.51x = 136,394.19 × 55,807.74
  4. Step 4: Simplify right side
    98,841.51x = 7,611,851,493.03
  5. Step 5: Solve for x
    x = 7,611,851,493.03/98,841.51
  6. Step 6: Final answer
    x = 77,010.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.